baber/WOPTO huggingface dataset:
Patent GB-1363305-A (GB)
Title: Body implant material
IPC: A61F2/00
Filed: 1971-08-02
Abstract: 1363305 Polysiloxane bonded carbon fibre composite R F HOCHMAN 2 Aug 1971 [6 Aug 1970] 36192/71 Heading C1A [Also in Divisions A5 and C3] A material used for forming body implants comprises graphite or boron fibres at least partially embedded in organic plastics material at least the surface of the implant being substantially chemically inert to internal human tissue. The organic plastics material preferably comprises an organo-polysiloxane. If an epoxy resin is used, the implant is given an external coating of inert material, e.g. an organopolysiloxane. The material preferably has a porous surface. When formed into a body implant, the fibres used in forming the implant may vary in orientation according to their position in the implant. The implant is preferably an orthopµdic prosthesis.
Patent GB-1173028-A (GB)
Title: Balancing Ventilated Brake Discs
IPC: F16F15/34
Filed: 1967-08-07
Abstract: 1,173,028. Brake discs. BENDIX CORP. 7 Aug., 1967 [15 Aug., 1966], No. 36229/67. Heading F2E. In a rotatable brake disc having spaced annular parallel walls 20, 22 forming braking surfaces of the disc and transverse walls 24 interconnecting the parallel walls to form passages 26 for cooling the disc, at least one balance weight 68 consisting of a substantially U-shaped metal stamping member is inserted into at least one of the passages, the resilient leg portions 70, 72 engaging at least one wall to secure the weight against centrifugal force. Numerous alternative embodiments are disclosed in the Specification wherein the shape of the balance weight is varied. Fig. 3 shows an elternative balance weight 56 located between two adjacent transverse walls 24. Fig. 6 shows an alternative construction showing a metal stamping member 76 overlying a single transverse wall 24 and Fig. 9 shows a further embodiment of a metal stamping member 96 bearing against walls 24 and 24a of differing radial lengths. It is stated that the provision of at least one balance weight prevents undesirable vibration in the brake disc.
Patent GB-1515248-A (GB)
Title: Well installation
IPC: E21B23/03
Filed: 1976-09-01
Abstract: 1515248 Wells &c. CAMCO INC 1 Sept 1976 [8 Sept 1975] 36245/76 Heading E1F In a well installation for removing or installing a well tool e.g. a flow control device (120) (Fig. 8, not shown) in a selected well sub e.g. in a pocket in a selected mandrel 116 by means of a locator tool e.g. a kickover tool 118, the body of the mandrel 116 includes an orienting sleeve 150 positioned above the pocket for orienting the tool 118 relative to the pocket prior to removal or installation of the flow control device. The top of the sleeve 150 has a downwardly inclined guide surface 152, and a slot 154 extends downwardly from the guide surface 152. The slot 154 includes at least one vertically aligned ridge 158 and valley 160 and ends in an upwardly directed actuating shoulder 156, the kickover tool 118 includes a body 122 which can be connected to a wireline or pumpdown locomotive 126. A locating assembly 130 is provided in the body 122 and includes a finger 132 which is pivoted at 133 and urged outwardly by a spring 134. The finger 132 includes a downwardly directed shoulder 140 to coact with the shoulder 156 and has at least one ridge 142 and valley 144 which coact with the particular ridge 158 and valley 160 of the mandrel 116. The finger 132 will not enter the slots of other mandrels in the well tubing since these have different configurations of ridges and valleys. Thus the tool 118 is selective for the particular mandrel 116. Once the shoulders 140, 156 come into contact (as in Fig. 5), a pin 131 is sheared which allows the body 122 to move downwardly relative to the locating assembly 130. An actuating rod 184 is thereby withdrawn to release a kickover arm 174 so that it may extend over the top of the pocket in the mandrel. As the body 122 continues to move downwardly, the upper end of the locating assembly 130 engages the bottom of a piston 202 and further movement is restricted as fluid leaks through a check valve 206. A shoulder on the body 122 contacts a downwardly inclined surface 138 on the top of the finger 132 to retract the finger so that the body 122 can be further lowered to install or remove the flow control device. In an alternative embodiment (Figs. 1-4, not shown), a similar locator tool is used to orient and selectively install a Z-lock in one of a number of well subs.
Patent GB-963548-A (GB)
Title: Hot trap for the removal of hydrogen impurity from alkali metals
Inventor: POOL RICHARD ALEXANDER HAMILTO
IPC: C22B26/10
Filed: 1961-10-10
Abstract: A hot trap for the removal of hydrogen impurity from molten alkali metals incorporates a metal getter, e.g. zirconium, having a coating which is hydrogen-permeable and compatible with the alkali metals at the operating temperature. A suitable coating is of nickel or nickel alloy 1 to 6 X 10-5 inches thick. According to an example, a coated getter is prepared by etching zirconium sheet with ammonium bifluoride solution and electroplating the etched sheet with nickel using a plating bath of nickel sulphate, nickel chloride and boric acid at a temperature of 56  DEG C. and a current density of 25A/ft.2. Alternatively, the zirconium sheet may be coated with a nickel alloy by vapour deposition.  The trap is operated at a temperature of 200-450  DEG C.
Patent GB-339105-A (GB)
Title: Process of improving the working of lime and dolomite calcining kilns
IPC: C04B2/10
Filed: 1929-11-27
Abstract: 339,105. Voss, W., and Vulcan- Feuerung Akt.-Ges. Nov. 27, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 28, 1929.] Liquids, supplying.-water which is injected into a shaft kiln for calcining lime or dolomite, is cooled nearly to freezing point to prevent its conversion to steam before it contacts with the charge. The water may be cooled in the supply tank, or the supply pipe may have a cooling jacket up to the discharge orifice, or cooled water may be supplied through a pipe conveying considerably more water than is allowed to enter the kiln.
Patent GB-1438737-A (GB)
Title: Method and apparatus for positioning movable means
IPC: H01J37/302
Filed: 1974-08-19
Abstract: 1438737 Automatic control systems INTERNATIONAL BUSINESS MACHINES CORP 19 Aug 1974 [19 Sept 1973] 36346/74 Heading G3N  A line by line scan is controlled by a memory and, at a predetermined position on a line, a function of the scan at that predetermined position and at the same position in the next line is determined, and the memory control for the next line updated if these functions differ. In the embodiment, an electron beam forms a desired pattern on a semi-conductor chip with line by line control of the beam exposure and position by a memory fed from a computer. The beam is moved to a predetermined position on a line and the desired exposure given. Then the memory is examined to determine the exposure and position offset required at the same predetermined position on the next line, and if a difference is found the memory is updated. The beam is then moved to the next desired position and the exposure/offset control (and updating if necessary) is repeated. Since.the memory updating is limited, faster writing of the pattern on the semi-conductor chip can be achieved. The apparatus is similar to that disclosed in Specification 1329559 and the digital exposure/offset control is described with reference to Figs. 2A and 2B (not shown).
Patent GB-1043338-A (GB)
Title: Improvements in process for producing superconductive bodies
IPC: B22F7/00
Filed: 1965-08-25
Abstract: A high critical field superconductor body is produced by compressing an assembly of at least two metal bodies e.g. sheets, to physically reduce its cross sectional area, cutting the elongated assembly into lengths, reassembling the lengths together and repeating the process until eventually individual laminae less than 1 m  thick are obtained; then heating to react the metals together to form a superconductive alloy.  Annealing at temperatures sufficient to relieve strain but insufficient for alloying is carried out between the physical reduction stages. Examples of suitable metals are, Nb-Al; Nb-Au; Nb-Ga; Nb-Ir; Nb-Pt; Nb-Sn; Nb-Ti; Nb-Zr; V-Si; V-Ga; Mo-Re and V-Ti.
Patent GB-404453-A (GB)
Title: Improvements relating to conveyor-driving units
IPC: B65G27/00
Filed: 1932-12-28
Abstract: 404,453. Jigging conveyers. ANDERSON, A., and ANDERSON, BOYES, & CO., Ltd., Flemington Electrical Works, Motherwell, Lanarkshire. Dec. 28, 1932, No. 36651. [Class 78 (i).] In a driving unit of the type including a motor 1, a crank-shaft 2 operatively connected to the motor through spur gearing 6, &c., a counter-shaft 7 deriving oscillatory movements from the crank-shaft, and a crank arm 8 mounted on the counter-shaft and provided with means for connection to a jigging conveyer, a slip clutch 9 is incorporated in the gearing connecting the motor with the crank-shaft and is adjusted to slip when the motor is taking up the load. The clutch 9 is of the multiple-plate friction type and is loaded by a spring 10, the effect of which may be varied by rotation of a spindle 11 in threaded engagement with a nut 12 carried by a lever 13. Rollers 15 mounted on the lever 13 roll on a disc 16 which is operatively connected to one group of plates of the clutch 9. The spring-loading on the clutch may be opposed by a solenoid which is so related to the motor 1 as to be energized when the motor becomes overloaded. The clutch also may be of the electromagnetic type, or of the centrifugally operated type, or of the hydraulic type including an impeller and a hydraulic motor supplied with fluid from the impeller.
Patent GB-1278424-A (GB)
Title: Spherical methanation catalysts
IPC: B01J37/00
Filed: 1969-07-22
Abstract: 1278424 Methanation catalysts CATALYSTS & CHEMICALS Inc 22 July 1969 [26 July 1968] 36673/69 Heading B1E [Also in Division C5] A catalyst precursor in the form of porous spheres which on calcination and reduction promotes reactions between carbon oxides and hydrogen to form methane comprises 5-40% NiO, 15-75% of a binder which is either an activated transition alumina, e.g. rho or eta alumina, or a calcium silicater or aluminate cement or mixture of these cements and 0-75% alumina other than the transition alumina. The ingredients are tumbled and sprayed with water to form spheres and parameters such as bulk densities, specific gravity, ratios of pore volumes to sphere volume, &c, are fixed within specified ranges by adjusting the proportion of water to obtain a loss of 20-40% when the spheres are ignited to be rendered porous.
Patent GB-1455049-A (GB)
Title: Process for the manufacture of 3- 3,4-dihydroxy-phenyl-serine
IPC: C07C239/00
Filed: 1974-08-22
Abstract: 1455049 Compositions containing 3-(3, 4-dihydroxyphenyl) serines F HOFFMANN-LA ROCHE & CO AG 22 Aug ,1974 [22 Aug 1973] 36930/74 Heading A5B [Also in Division C2] Pharmaceutical compositions in conventional form for oral, rectal and parenteral administration and having antihypertensive and psychotropic activity contain rac-threo, rac-erythro, (-)-threo, (+ )-threo, (-)-erythro or (+)-erythro form of 3(3, 4-dihydroxy-phenyl)serine or salts thereof, and a carrier or diluent and optionally any peripheral decarboxylase inhibitors such as a compound of formula  wherein P is H an amino-C 1-5  alkanoyl group which may be hydroxysubstituted, or a compound of formula II wherein Q is H or C 1-4  alkyl.
Patent GB-1445702-A (GB)
Title: Method of lubrication using a lubricant comprising a petroleum oil and an azelate diester
IPC: C10M169/04
Filed: 1973-08-06
Abstract: 1445702 Lubricants SUN OIL CO 6 Aug 1973 [9 Aug 1972] 37150/73 Heading C5F A wick-fed bearing is lubricated by a composition that comprises a major amount of a blend of 50 to 80 parts by volume of a petroleum oil and 20 to 50 parts of an azelate diester, and minor amounts of an anti-wear agent, an antioxidant and a VI-improver other than an azelate diester. The lubricant may also comprise minor amounts of friction modifiers, extreme-pressure additives and pour point depressants. The petroleum oil has a viscosity between 50 and 3000 SUS at 100‹ F. and preferably a VI of at least 90 and a pour point not above 5‹ F. It may be a hydroisomerized paraffinic distillate or a hydrofined distillate with a paraffinic viscosity-gravity constant. Suitable additives are listed.
Patent GB-1128791-A (GB)
Title: Improvements in or relating to apparatus for determining angular orientation
IPC: G01S17/875
Filed: 1965-08-31
Abstract: 1,128,791. Photo-electric attitude measurement. HONEYWELL Inc. 31 Aug., 1965 [31 Aug., 1964], No. 37255/65. Heading H4D. In an arrangement for measuring the extent of rotation about three orthogonal axes of a body 12, Fig. 1 (e.g. an inertial platform in a missile) lamps 14, 15 produce mutually perpendicular lines of light in the same plane which are transmitted via apertures in a fixed opaque disc 29, Fig. 2, to a reflector 11 mounted on the body and the reflected light is examined by differentially-connected pairs of silicon-chip photo-detectors, e.g. 30, 31, the circuit outputs of which, Fig. 4, represent the yaw, roll and pitch of body 12. A reference signal for demodulation is provided by a photo-detector 92, Fig. 4, which receives light passing through a chopping disc 20 (which may be replaced by a suitable frequency of A.C. supply to the lamp). The light from lamp 14 passes (after chopping) through slit 41, Fig. 2, in disc 29 and that from lamp 15 through slit 42. Photo-detectors 30, 31 are truncated triangles separated by a passive area 40 so that electrical output is a linear indication of the body misalignment about its yaw axis; slit 41 is along the base of detector 31. Detectors 32, 33 also are of triangular shape but are separated by slit 42 and afford an electrical output linearly indicative of body misalignment about its pitch axis. Detectors 34, 35 are of rectangular shape and separated by a passive area 43; they give an electrical output linearly indicative of body misalignment about its roll axis. The reflector on the body is pyramidal and may be an orthogonal pair of Porro prisms; such pyramid is slightly misaligned about the yaw axis so that light from slit 41 returns to passive area 40 and this intentional misalignment removes the effects of surface reflections from the base of the pyramid. The misalignment signals are indicated or control re-orientation of the body.
Patent GB-522982-A (GB)
Title: Improvements in polymerization
IPC: C08F24/00
Filed: 1938-12-22
Abstract: 522,982. Interpolymers. WINGFOOT CORPORATION. Dec. 22, 1938, No. 37265. Convention date, March 31, 1938. Samples furnished. [Class 2 (iii)] Rubber-like interpolymers are prepared by emulsifying mixtures of selected monomers in the presence of an emulsifying agent, an oxidizing agent and a chloropropionitrile. The chloropropionitrile acts as a catalyst, but may take part in the polymerization. The monomers are selected from different groups, the groups comprising (a) dienes (such as butadiene, methylbutadiene, isoprene, dimethylbutadiene or chlorobutadiene), (b) esters and nitriles of acrylic or substituted acrylic acids (such as methyl, ethyl, butyl and isobutyl acrylates, methyl, ethyl, allyl, vinyl and octyl methacrylates, esters of α-ethyl- and α-propylacrylic acids, acrylonitrile and methacrylonitrile and (c) derivatives of ethylene in which one carbon atom is unsubstituted and the other is connected to a cyclic residue so that a conjugated double bond system is formed with the ethylene double bond (such as vinyl benzene, vinylnaphthalene and vinylfurane). Mixtures specified are (1) butadiene and acrylonitrile, (2) butadiene and methacrylonitrile, (3) butadiene and methyl methacrylate, (4) styrene and acrylonitrile, (5) methyl butadiene and styrene (example) butadiene and acrylonitrile, (sample A) butadiene and styrene, and (sample B) butadiene, acrylonitrile and methyl methacrylate.
Patent GB-363807-A (GB)
Title: Sliver-can doffing mechanism for textile machines
IPC: B65H67/04
Filed: 1930-12-11
Abstract: 363,807. Doffing arrangements for reciprocating sliver-cans. LOW & CO., Ltd., J. F. and HARGROVE, J., Monifieth Foundry, Monifieth, Angus. Dec. 11, 1930, No. 37335. [Class 120 (iii).] A sliver-can doffing mechanism comprises a reciprocating carriage 4 adapted to accommodate two cans 3, 3<1>, Fig. 1, and a stop device 6 having a fixed mounting and located normally clear of the cans but movable into position to obstruct the can 31 for one stroke of the carriage 4 in the direction A, whereby to displace the full can 3 and to move the can 31 towards the filling position. The stop device 6 comprises a pair of rollers journalled on a pin 7, Fig. 2, and operable manually by a lever 11, or automatically after delivery of a predetermined length of silver 1 by means controlled from the delivery-roller of the carding-engine 2. The stop 6 is movable into its operative position only when the carriage 4 is at the left-hand end of its travel. When the carriage 4 reaches the right-hand end of its travel a further movement of the handle 11 in the direction B will move the can 3 completely off the carriage 4 and the can 3<1> to the filling position.
Patent GB-1088958-A (GB)
Title: Improvements relating to the treatment of semi-conductor materials
Inventor: ASHTON GEOFFREY
IPC: H01L21/322
Filed: 1963-09-23
Abstract: 1,088,958. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 11, 1964 [Sept. 23, 1963], No. 37372/63. Heading H1K. Lifetime of minority carriers is reduced in a region of a semi-conductor body by doping the selected region with a suitable metallic impurity such as gold, copper, iron or nickel. A quantity of the metal is deposited on the surface of the selected region from a solution of a salt of the metal in a solvent such as water, or hydrochloric acid, hydrofluoric acid, nitric acid, acetic acid, or a mixture of two or more of these acids. The body is then heated to diffuse in the metallic impurity but simultaneously the surface of the semi-conductor is gettered by exposing it to phosphorus pentoxide or boron trioxide vapour to form a glassy layer which removes harmful impurities from the surface and also a fraction of the metallic impurity. The method is particularly useful in the manufacture of three electrode PNPN switching elements. In the embodiment described etched and washed silicon PNPN slices are masked as desired and immersed in a solution of chloroauric acid at known concentration. They are then washed and dried and heated to 1000- 1200‹ C. while exposed to vapour produced by heating phosphorus pentoxide to 450‹ C. The vapour rests with the surface of each slice and on cooling forms the glassy layer which getters the harmful impurities and also a known fraction of the gold.
Patent GB-1031147-A (GB)
Title: Improvements in and relating to circuit arrangements for igniting ignitrons
IPC: H02M1/02
Filed: 1964-09-09
Abstract: 1,031,147. Converting. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 9, 1964 [Sept. 12, 1963], No. 36909/64. Heading H2F. An ignitron is fired through a controllable semi-conductor switch and automatic extinction of the ignition-electrode-cathode path of the ignitron when the main anode-cathode path conducts is ensured by the provision of a voltage-dependent resistor in series witn the semi-conductor switch. As shown an ignitron 3 is connected in series with a load 4 across a transformer secondary winding 2 and a Zener diode 6 and SCR 5 are connected between anode and ignition electrode. The arc drop of the ignitron (say 20 volts) is less than the Zener voltage (say 25 volts). On firing the rectifier 5 an arc is struck between the ignition electrode and cathode quickly forming a cathode spot so that the anode-cathode path is struck. The resulting arc short-circuits the ignition path, and the voltage drop (20 v.) is insufficient to maintain current through this path which contains the Zener diode.
Patent GB-1473970-A (GB)
Title: Cereal mill which is an accessory for a kitchen appliance
IPC: B02C7/14
Filed: 1975-09-11
Abstract: 1473970 Disc mills J G SCHNITZER 11 Sept 1975 [16 Sept 1974 (2) 4 Oct 1974] 37442/ 75 Heading B2A A cereal mill is driven by and is an accessory to a kitchen appliance and comprises a rotatable lower millstone 22 on a vertical drive shaft 24 and a cooperating stationary upper millstone 18 which is inserted in a cylindrical storage container 10 which acts as a feed hopper for the material to be ground and can be placed on the kitchen appliance. The millstones are relatively adjustable in height. The stationary millstone has a central feed orifice 20 for the material to be ground and the drive shaft of the rotatable millstone is coupled to a driven shaft of the kitchen machine when the container is in position. A cover 30 can be placed on the container 10 and and has a central hub 38 supported by radial spokes 36 through which the rotatable driving shaft 24 projects upwardly. A nut 58 which adjustably generates grinding pressure is screwed on to the end of the driving shaft 24 projecting above the hub 38. The upper side of the stationary millstone 22 forms a hopper shaped bottom of the container. The stone 22 has a spinal groove 142 in the radially inner region leading from the aperture 20 to an annular depression 146. The upper stone 18 has opposite spinal grooves 148. The lower and upper stones also have spinal furrows 150, 151. A milling cutter 136 cooperates with narrowing feed grooves 124 to precomminute material to be ground.  In one embodiment after adjustment of grinding pressure by a nut 42, Fig. 4, a cap 52 is screwed over it to secure it in position An indicator may be provided including a scale ring 112 and pointer 114 or as modified in Fig. 9 (not shown). The rotary millstone is free to tilt about the axis of the drive shaft Fig. 7, since the centre bore is filled with elastic material, e.g. foam rubber.